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congatec
AG
ICWLm12
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5.12
CPU and System Fan Header
The conga-IC370 provides pin header X54 for connecting CPU fan and pin header X55 for connecting system fan. The headers support 3-pin
or 4-pin 12 V fan. The recommended maximum power rating for the fan is 4 W.
Table 44 X54 Pinout Description
Pin
Signal
1
GND
2
+12 VDC (maximum 500 mA)
3
CPU_FAN_TACHOIN
4
CPU_FAN_CTRL
Table 45 X55 Pinout Description
Pin
Signal
1
GND
2
+12 VDC (maximum 500 mA)
3
AUX_FAN_TACHOIN
4
AUX_FAN_CTRL
Note
1. The connector and pinout complies with 4-Wire Pulse PWM Controlled Fans Specification, Revision 1.3
2. FAN_TACHOIN fan output shall provide two pulses per revolution.
3. The fan must pull-up the FAN_CTRL signal to high logic level
Connector Type
X54, X55: 2.54 mm, 4-pin header
X54
1 2 3 4
X55
1 2 3 4